. >> president obama em romney meet in their first presidential debate. we moderate from the university of denver. what engage with our live event preview followed by two ways to watch the debate at 9:00. both candidates on screen the entire debate. the multi camera version of the debate. following, your reaction. follow our coverage. >> the next a look at u.s. nuclear security efforts and the comprehensive test ban treaty. rose gottemoeller talked about the need for the u.s. to ratify the treaty even as the country has observed a moratorium. this is about 45 minutes. >> in the ceo of the american securities project. welcome. if you're not familiar with a.s.p, we are nonprofit to take on national-security issues from a non-partisan perspective. we were founded in 2006. they all remain on our board today. one of the point they raised then is a lot of these issues get painted one way or another. we tend to feel that they should get painted in the perspective and national security. we have a number of publications outside. we steady all of them. -- study all